Home / 10,431.50-14,395.47-6,240.74

Finding the Fourth Proportional to 10,431.50, 14,395.47 and 6,240.74

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Solution

The fourth proportional to 10,431.50, 14,395.47 and 6,240.74 is: 8,612.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.50 : 14,395.47 = 6,240.74 : x
  2. Step 2: Convert to fraction form
    10,431.50/14,395.47 = 6,240.74/x
  3. Step 3: Cross multiply
    10,431.50x = 14,395.47 × 6,240.74
  4. Step 4: Simplify right side
    10,431.50x = 89,838,385.45
  5. Step 5: Solve for x
    x = 89,838,385.45/10,431.50
  6. Step 6: Final answer
    x = 8,612.22

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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.