Home / 18,970.04-28,430.58-9,088.76

Finding the Fourth Proportional to 18,970.04, 28,430.58 and 9,088.76

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Solution

The fourth proportional to 18,970.04, 28,430.58 and 9,088.76 is: 13,621.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.04 : 28,430.58 = 9,088.76 : x
  2. Step 2: Convert to fraction form
    18,970.04/28,430.58 = 9,088.76/x
  3. Step 3: Cross multiply
    18,970.04x = 28,430.58 × 9,088.76
  4. Step 4: Simplify right side
    18,970.04x = 258,398,718.28
  5. Step 5: Solve for x
    x = 258,398,718.28/18,970.04
  6. Step 6: Final answer
    x = 13,621.41

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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.