Home / 15,330.84-21,154.98-9,363.96

Finding the Fourth Proportional to 15,330.84, 21,154.98 and 9,363.96

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Solution

The fourth proportional to 15,330.84, 21,154.98 and 9,363.96 is: 12,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,330.84 : 21,154.98 = 9,363.96 : x
  2. Step 2: Convert to fraction form
    15,330.84/21,154.98 = 9,363.96/x
  3. Step 3: Cross multiply
    15,330.84x = 21,154.98 × 9,363.96
  4. Step 4: Simplify right side
    15,330.84x = 198,094,386.52
  5. Step 5: Solve for x
    x = 198,094,386.52/15,330.84
  6. Step 6: Final answer
    x = 12,921.30

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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.