Home / 14,323.78-19,721.90-13,011.58

Finding the Fourth Proportional to 14,323.78, 19,721.90 and 13,011.58

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Solution

The fourth proportional to 14,323.78, 19,721.90 and 13,011.58 is: 17,915.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,323.78 : 19,721.90 = 13,011.58 : x
  2. Step 2: Convert to fraction form
    14,323.78/19,721.90 = 13,011.58/x
  3. Step 3: Cross multiply
    14,323.78x = 19,721.90 × 13,011.58
  4. Step 4: Simplify right side
    14,323.78x = 256,613,079.60
  5. Step 5: Solve for x
    x = 256,613,079.60/14,323.78
  6. Step 6: Final answer
    x = 17,915.18

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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.