Home / 12,650.34-17,457.36-6,985.08

Finding the Fourth Proportional to 12,650.34, 17,457.36 and 6,985.08

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Solution

The fourth proportional to 12,650.34, 17,457.36 and 6,985.08 is: 9,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.34 : 17,457.36 = 6,985.08 : x
  2. Step 2: Convert to fraction form
    12,650.34/17,457.36 = 6,985.08/x
  3. Step 3: Cross multiply
    12,650.34x = 17,457.36 × 6,985.08
  4. Step 4: Simplify right side
    12,650.34x = 121,941,056.19
  5. Step 5: Solve for x
    x = 121,941,056.19/12,650.34
  6. Step 6: Final answer
    x = 9,639.35

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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.