Home / 13,746.98-18,971.20-7,459.36

Finding the Fourth Proportional to 13,746.98, 18,971.20 and 7,459.36

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Solution

The fourth proportional to 13,746.98, 18,971.20 and 7,459.36 is: 10,294.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.98 : 18,971.20 = 7,459.36 : x
  2. Step 2: Convert to fraction form
    13,746.98/18,971.20 = 7,459.36/x
  3. Step 3: Cross multiply
    13,746.98x = 18,971.20 × 7,459.36
  4. Step 4: Simplify right side
    13,746.98x = 141,513,010.43
  5. Step 5: Solve for x
    x = 141,513,010.43/13,746.98
  6. Step 6: Final answer
    x = 10,294.12

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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.