Home / 14,349.04-19,801.53-7,888.78

Finding the Fourth Proportional to 14,349.04, 19,801.53 and 7,888.78

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Solution

The fourth proportional to 14,349.04, 19,801.53 and 7,888.78 is: 10,886.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,349.04 : 19,801.53 = 7,888.78 : x
  2. Step 2: Convert to fraction form
    14,349.04/19,801.53 = 7,888.78/x
  3. Step 3: Cross multiply
    14,349.04x = 19,801.53 × 7,888.78
  4. Step 4: Simplify right side
    14,349.04x = 156,209,913.83
  5. Step 5: Solve for x
    x = 156,209,913.83/14,349.04
  6. Step 6: Final answer
    x = 10,886.44

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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.