Home / 15,938.16-23,878.40-8,909.76

Finding the Fourth Proportional to 15,938.16, 23,878.40 and 8,909.76

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Solution

The fourth proportional to 15,938.16, 23,878.40 and 8,909.76 is: 13,348.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938.16 : 23,878.40 = 8,909.76 : x
  2. Step 2: Convert to fraction form
    15,938.16/23,878.40 = 8,909.76/x
  3. Step 3: Cross multiply
    15,938.16x = 23,878.40 × 8,909.76
  4. Step 4: Simplify right side
    15,938.16x = 212,750,813.18
  5. Step 5: Solve for x
    x = 212,750,813.18/15,938.16
  6. Step 6: Final answer
    x = 13,348.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.