Home / 13,528.96-18,681.84-8,501.89

Finding the Fourth Proportional to 13,528.96, 18,681.84 and 8,501.89

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Solution

The fourth proportional to 13,528.96, 18,681.84 and 8,501.89 is: 11,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.96 : 18,681.84 = 8,501.89 : x
  2. Step 2: Convert to fraction form
    13,528.96/18,681.84 = 8,501.89/x
  3. Step 3: Cross multiply
    13,528.96x = 18,681.84 × 8,501.89
  4. Step 4: Simplify right side
    13,528.96x = 158,830,948.68
  5. Step 5: Solve for x
    x = 158,830,948.68/13,528.96
  6. Step 6: Final answer
    x = 11,740.07

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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.