Home / 15,312.60-21,130.70-8,598.08

Finding the Fourth Proportional to 15,312.60, 21,130.70 and 8,598.08

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Solution

The fourth proportional to 15,312.60, 21,130.70 and 8,598.08 is: 11,864.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.60 : 21,130.70 = 8,598.08 : x
  2. Step 2: Convert to fraction form
    15,312.60/21,130.70 = 8,598.08/x
  3. Step 3: Cross multiply
    15,312.60x = 21,130.70 × 8,598.08
  4. Step 4: Simplify right side
    15,312.60x = 181,683,458.89
  5. Step 5: Solve for x
    x = 181,683,458.89/15,312.60
  6. Step 6: Final answer
    x = 11,864.96

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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.