Home / 19,018.02-28,503.27-9,154.68

Finding the Fourth Proportional to 19,018.02, 28,503.27 and 9,154.68

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Solution

The fourth proportional to 19,018.02, 28,503.27 and 9,154.68 is: 13,720.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.02 : 28,503.27 = 9,154.68 : x
  2. Step 2: Convert to fraction form
    19,018.02/28,503.27 = 9,154.68/x
  3. Step 3: Cross multiply
    19,018.02x = 28,503.27 × 9,154.68
  4. Step 4: Simplify right side
    19,018.02x = 260,938,315.80
  5. Step 5: Solve for x
    x = 260,938,315.80/19,018.02
  6. Step 6: Final answer
    x = 13,720.58

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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.