Home / 15,312.65-21,130.67-8,598.56

Finding the Fourth Proportional to 15,312.65, 21,130.67 and 8,598.56

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Solution

The fourth proportional to 15,312.65, 21,130.67 and 8,598.56 is: 11,865.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.65 : 21,130.67 = 8,598.56 : x
  2. Step 2: Convert to fraction form
    15,312.65/21,130.67 = 8,598.56/x
  3. Step 3: Cross multiply
    15,312.65x = 21,130.67 × 8,598.56
  4. Step 4: Simplify right side
    15,312.65x = 181,693,249.68
  5. Step 5: Solve for x
    x = 181,693,249.68/15,312.65
  6. Step 6: Final answer
    x = 11,865.57

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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.