Home / 15,457.16-21,323.02-9,782.34

Finding the Fourth Proportional to 15,457.16, 21,323.02 and 9,782.34

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Solution

The fourth proportional to 15,457.16, 21,323.02 and 9,782.34 is: 13,494.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,457.16 : 21,323.02 = 9,782.34 : x
  2. Step 2: Convert to fraction form
    15,457.16/21,323.02 = 9,782.34/x
  3. Step 3: Cross multiply
    15,457.16x = 21,323.02 × 9,782.34
  4. Step 4: Simplify right side
    15,457.16x = 208,589,031.47
  5. Step 5: Solve for x
    x = 208,589,031.47/15,457.16
  6. Step 6: Final answer
    x = 13,494.65

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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.