Home / 15,370.19-21,218.86-10,360.74

Finding the Fourth Proportional to 15,370.19, 21,218.86 and 10,360.74

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Solution

The fourth proportional to 15,370.19, 21,218.86 and 10,360.74 is: 14,303.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.19 : 21,218.86 = 10,360.74 : x
  2. Step 2: Convert to fraction form
    15,370.19/21,218.86 = 10,360.74/x
  3. Step 3: Cross multiply
    15,370.19x = 21,218.86 × 10,360.74
  4. Step 4: Simplify right side
    15,370.19x = 219,843,184.08
  5. Step 5: Solve for x
    x = 219,843,184.08/15,370.19
  6. Step 6: Final answer
    x = 14,303.22

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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.