Home / 15,590.57-23,491.09-12,878.01

Finding the Fourth Proportional to 15,590.57, 23,491.09 and 12,878.01

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Solution

The fourth proportional to 15,590.57, 23,491.09 and 12,878.01 is: 19,403.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.57 : 23,491.09 = 12,878.01 : x
  2. Step 2: Convert to fraction form
    15,590.57/23,491.09 = 12,878.01/x
  3. Step 3: Cross multiply
    15,590.57x = 23,491.09 × 12,878.01
  4. Step 4: Simplify right side
    15,590.57x = 302,518,491.93
  5. Step 5: Solve for x
    x = 302,518,491.93/15,590.57
  6. Step 6: Final answer
    x = 19,403.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.