Home / 15,820.02-21,831.48-8,746.38

Finding the Fourth Proportional to 15,820.02, 21,831.48 and 8,746.38

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Solution

The fourth proportional to 15,820.02, 21,831.48 and 8,746.38 is: 12,069.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.02 : 21,831.48 = 8,746.38 : x
  2. Step 2: Convert to fraction form
    15,820.02/21,831.48 = 8,746.38/x
  3. Step 3: Cross multiply
    15,820.02x = 21,831.48 × 8,746.38
  4. Step 4: Simplify right side
    15,820.02x = 190,946,420.04
  5. Step 5: Solve for x
    x = 190,946,420.04/15,820.02
  6. Step 6: Final answer
    x = 12,069.92

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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.