Home / 10,420.02-14,379.07-5,703.39

Finding the Fourth Proportional to 10,420.02, 14,379.07 and 5,703.39

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Solution

The fourth proportional to 10,420.02, 14,379.07 and 5,703.39 is: 7,870.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.02 : 14,379.07 = 5,703.39 : x
  2. Step 2: Convert to fraction form
    10,420.02/14,379.07 = 5,703.39/x
  3. Step 3: Cross multiply
    10,420.02x = 14,379.07 × 5,703.39
  4. Step 4: Simplify right side
    10,420.02x = 82,009,444.05
  5. Step 5: Solve for x
    x = 82,009,444.05/10,420.02
  6. Step 6: Final answer
    x = 7,870.37

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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.