Home / 15,783.30-23,678.59-4,689.74

Finding the Fourth Proportional to 15,783.30, 23,678.59 and 4,689.74

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Solution

The fourth proportional to 15,783.30, 23,678.59 and 4,689.74 is: 7,035.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,783.30 : 23,678.59 = 4,689.74 : x
  2. Step 2: Convert to fraction form
    15,783.30/23,678.59 = 4,689.74/x
  3. Step 3: Cross multiply
    15,783.30x = 23,678.59 × 4,689.74
  4. Step 4: Simplify right side
    15,783.30x = 111,046,430.67
  5. Step 5: Solve for x
    x = 111,046,430.67/15,783.30
  6. Step 6: Final answer
    x = 7,035.69

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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.