Home / 19,160-26,447.28-13,587.20

Finding the Fourth Proportional to 19,160, 26,447.28 and 13,587.20

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Solution

The fourth proportional to 19,160, 26,447.28 and 13,587.20 is: 18,754.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,160 : 26,447.28 = 13,587.20 : x
  2. Step 2: Convert to fraction form
    19,160/26,447.28 = 13,587.20/x
  3. Step 3: Cross multiply
    19,160x = 26,447.28 × 13,587.20
  4. Step 4: Simplify right side
    19,160x = 359,344,482.82
  5. Step 5: Solve for x
    x = 359,344,482.82/19,160
  6. Step 6: Final answer
    x = 18,754.93

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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.