Home / 12,420,574.96-17,140,217.86-6,988,054

Finding the Fourth Proportional to 12,420,574.96, 17,140,217.86 and 6,988,054

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Solution

The fourth proportional to 12,420,574.96, 17,140,217.86 and 6,988,054 is: 9,643,415.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420,574.96 : 17,140,217.86 = 6,988,054 : x
  2. Step 2: Convert to fraction form
    12,420,574.96/17,140,217.86 = 6,988,054/x
  3. Step 3: Cross multiply
    12,420,574.96x = 17,140,217.86 × 6,988,054
  4. Step 4: Simplify right side
    12,420,574.96x = 119,776,767,977,444.44
  5. Step 5: Solve for x
    x = 119,776,767,977,444.44/12,420,574.96
  6. Step 6: Final answer
    x = 9,643,415.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.