Home / 13,854.78-19,119.45-7,567.15

Finding the Fourth Proportional to 13,854.78, 19,119.45 and 7,567.15

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Solution

The fourth proportional to 13,854.78, 19,119.45 and 7,567.15 is: 10,442.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.78 : 19,119.45 = 7,567.15 : x
  2. Step 2: Convert to fraction form
    13,854.78/19,119.45 = 7,567.15/x
  3. Step 3: Cross multiply
    13,854.78x = 19,119.45 × 7,567.15
  4. Step 4: Simplify right side
    13,854.78x = 144,679,746.07
  5. Step 5: Solve for x
    x = 144,679,746.07/13,854.78
  6. Step 6: Final answer
    x = 10,442.59

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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.