Home / 15,345.63-21,154.75-10,162.84

Finding the Fourth Proportional to 15,345.63, 21,154.75 and 10,162.84

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Solution

The fourth proportional to 15,345.63, 21,154.75 and 10,162.84 is: 14,010.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,345.63 : 21,154.75 = 10,162.84 : x
  2. Step 2: Convert to fraction form
    15,345.63/21,154.75 = 10,162.84/x
  3. Step 3: Cross multiply
    15,345.63x = 21,154.75 × 10,162.84
  4. Step 4: Simplify right side
    15,345.63x = 214,992,339.49
  5. Step 5: Solve for x
    x = 214,992,339.49/15,345.63
  6. Step 6: Final answer
    x = 14,010.00

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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.