Home / 13,875.04-19,147.64-7,587.44

Finding the Fourth Proportional to 13,875.04, 19,147.64 and 7,587.44

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Solution

The fourth proportional to 13,875.04, 19,147.64 and 7,587.44 is: 10,470.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.04 : 19,147.64 = 7,587.44 : x
  2. Step 2: Convert to fraction form
    13,875.04/19,147.64 = 7,587.44/x
  3. Step 3: Cross multiply
    13,875.04x = 19,147.64 × 7,587.44
  4. Step 4: Simplify right side
    13,875.04x = 145,281,569.64
  5. Step 5: Solve for x
    x = 145,281,569.64/13,875.04
  6. Step 6: Final answer
    x = 10,470.71

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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.