Home / 10,085.65-15,128.51-4,242.24

Finding the Fourth Proportional to 10,085.65, 15,128.51 and 4,242.24

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Solution

The fourth proportional to 10,085.65, 15,128.51 and 4,242.24 is: 6,363.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.65 : 15,128.51 = 4,242.24 : x
  2. Step 2: Convert to fraction form
    10,085.65/15,128.51 = 4,242.24/x
  3. Step 3: Cross multiply
    10,085.65x = 15,128.51 × 4,242.24
  4. Step 4: Simplify right side
    10,085.65x = 64,178,749.05
  5. Step 5: Solve for x
    x = 64,178,749.05/10,085.65
  6. Step 6: Final answer
    x = 6,363.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.