Home / 19,787.90-27,307.34-10,713.35

Finding the Fourth Proportional to 19,787.90, 27,307.34 and 10,713.35

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Solution

The fourth proportional to 19,787.90, 27,307.34 and 10,713.35 is: 14,784.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.90 : 27,307.34 = 10,713.35 : x
  2. Step 2: Convert to fraction form
    19,787.90/27,307.34 = 10,713.35/x
  3. Step 3: Cross multiply
    19,787.90x = 27,307.34 × 10,713.35
  4. Step 4: Simplify right side
    19,787.90x = 292,553,186.04
  5. Step 5: Solve for x
    x = 292,553,186.04/19,787.90
  6. Step 6: Final answer
    x = 14,784.45

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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.