Home / 13,875.54-19,148.23-7,587.91

Finding the Fourth Proportional to 13,875.54, 19,148.23 and 7,587.91

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Solution

The fourth proportional to 13,875.54, 19,148.23 and 7,587.91 is: 10,471.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.54 : 19,148.23 = 7,587.91 : x
  2. Step 2: Convert to fraction form
    13,875.54/19,148.23 = 7,587.91/x
  3. Step 3: Cross multiply
    13,875.54x = 19,148.23 × 7,587.91
  4. Step 4: Simplify right side
    13,875.54x = 145,295,045.90
  5. Step 5: Solve for x
    x = 145,295,045.90/13,875.54
  6. Step 6: Final answer
    x = 10,471.31

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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.