Home / 13,862.79-19,130.63-7,575.17

Finding the Fourth Proportional to 13,862.79, 19,130.63 and 7,575.17

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Solution

The fourth proportional to 13,862.79, 19,130.63 and 7,575.17 is: 10,453.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.79 : 19,130.63 = 7,575.17 : x
  2. Step 2: Convert to fraction form
    13,862.79/19,130.63 = 7,575.17/x
  3. Step 3: Cross multiply
    13,862.79x = 19,130.63 × 7,575.17
  4. Step 4: Simplify right side
    13,862.79x = 144,917,697.74
  5. Step 5: Solve for x
    x = 144,917,697.74/13,862.79
  6. Step 6: Final answer
    x = 10,453.72

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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.