Home / 15,457.34-21,329.19-9,168.50

Finding the Fourth Proportional to 15,457.34, 21,329.19 and 9,168.50

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Solution

The fourth proportional to 15,457.34, 21,329.19 and 9,168.50 is: 12,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,457.34 : 21,329.19 = 9,168.50 : x
  2. Step 2: Convert to fraction form
    15,457.34/21,329.19 = 9,168.50/x
  3. Step 3: Cross multiply
    15,457.34x = 21,329.19 × 9,168.50
  4. Step 4: Simplify right side
    15,457.34x = 195,556,678.52
  5. Step 5: Solve for x
    x = 195,556,678.52/15,457.34
  6. Step 6: Final answer
    x = 12,651.38

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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.