Home / 10,908.60-15,056.22-6,430.71

Finding the Fourth Proportional to 10,908.60, 15,056.22 and 6,430.71

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Solution

The fourth proportional to 10,908.60, 15,056.22 and 6,430.71 is: 8,875.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908.60 : 15,056.22 = 6,430.71 : x
  2. Step 2: Convert to fraction form
    10,908.60/15,056.22 = 6,430.71/x
  3. Step 3: Cross multiply
    10,908.60x = 15,056.22 × 6,430.71
  4. Step 4: Simplify right side
    10,908.60x = 96,822,184.52
  5. Step 5: Solve for x
    x = 96,822,184.52/10,908.60
  6. Step 6: Final answer
    x = 8,875.77

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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.