Home / 15,310.84-21,123.50-9,646.10

Finding the Fourth Proportional to 15,310.84, 21,123.50 and 9,646.10

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Solution

The fourth proportional to 15,310.84, 21,123.50 and 9,646.10 is: 13,308.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.84 : 21,123.50 = 9,646.10 : x
  2. Step 2: Convert to fraction form
    15,310.84/21,123.50 = 9,646.10/x
  3. Step 3: Cross multiply
    15,310.84x = 21,123.50 × 9,646.10
  4. Step 4: Simplify right side
    15,310.84x = 203,759,393.35
  5. Step 5: Solve for x
    x = 203,759,393.35/15,310.84
  6. Step 6: Final answer
    x = 13,308.18

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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.